WO2021104035A1 - Uplink data transmission method and apparatus, terminal device, and storage medium - Google Patents

Abstract

The present application relates to the technical field of communications. Disclosed are an uplink data transmission method and apparatus, a terminal device, and a storage medium. The uplink data transmission method is applied to the terminal device, and the terminal device at least performs communication by means of a 5G network. The method comprises: transmitting uplink data; when uplink scheduling information is not obtained within a first period of time, obtaining the transmit power of a terminal device for transmitting the uplink data, wherein the uplink scheduling information is used for indicating the terminal device to re-transmit the uplink data or transmit new uplink data; and according to whether the transmit power satisfies a power condition, determining whether it is needed to re-transmit the uplink data. The present method can comprehensively determine the retransmission of uplink data.

Description

Uplink data transmission method, device, terminal equipment and storage medium

Cross-references to related applications

This application claims the priority of the Chinese application with the application number 201911173647.3 filed on November 26, 2019, which is hereby incorporated in its entirety by reference for all purposes.

Technical field

This application relates to the field of communication technology, and more specifically, to a method, device, terminal device, and storage medium for uplink data transmission.

Background technique

With the increasing demand for mobile traffic and the rapid development of wireless communication technology, the fifth generation (5G) mobile communication technology has emerged. 5G mobile communication technology is not only the latest generation of cellular mobile communication technology, but also an extension of 4G, 3G, and 2G mobile communication technologies. Its performance goals are high data rates, reduced latency, and large-scale device connections. However, whether it is the early 2G mobile communication system, the current 4G LTE (long term evolution) system architecture, or the later 5G mobile communication, in order to improve the reliability of data transmission, the data retransmission mechanism is It is a more important research direction.

Summary of the invention

This application proposes an uplink data transmission method, device, terminal equipment and storage medium.

In the first aspect, the embodiments of the present application provide a method for transmitting uplink data, which is applied to a terminal device, and the terminal device communicates through at least a 5G network. The method includes: sending uplink data; When the uplink scheduling information is obtained, the transmission power of the terminal device for sending uplink data is obtained, and the uplink scheduling information is used to instruct the terminal device to retransmit the uplink data or send new uplink data; according to whether the transmission power When the power condition is met, it is determined whether the uplink data needs to be retransmitted.

In the second aspect, the embodiments of the present application provide a device for transmitting uplink data, which is applied to a terminal device. The terminal device communicates via at least a 5G network. The device includes: a data sending module, an information acquisition module, and a retransmission determination Module. Wherein, the data sending module is used to send uplink data; the information obtaining module is used to obtain the transmission power of the terminal device to send uplink data when the uplink scheduling information is not obtained within the first time period, and the uplink scheduling The information is used to instruct the terminal device to retransmit the uplink data or to send new uplink data; the retransmission determination module is used to determine whether the uplink data needs to be retransmitted according to whether the transmission power satisfies the power condition.

In a third aspect, an embodiment of the present application provides a terminal device, including: one or more processors; a memory; one or more application programs, wherein the one or more application programs are stored in the memory and Is configured to be executed by the one or more processors, and the one or more application programs are configured to execute the uplink data transmission method provided in the above-mentioned first aspect.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium. The computer-readable storage medium stores program code, and the program code can be invoked by a processor to execute the uplink provided in the first aspect. The method of data transmission.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

Fig. 1 shows a schematic diagram of a system architecture of a communication network provided by an embodiment of the present application.

Fig. 2 shows a flow chart of a method for transmitting uplink data according to an embodiment of the present application.

Fig. 3 shows a flowchart of a method for transmitting uplink data according to another embodiment of the present application.

Fig. 4 shows a flowchart of step S230 in the uplink data transmission method provided by another embodiment of the present application.

FIG. 5 shows a flowchart of step S231 in the uplink data transmission method provided by another embodiment of the present application.

Fig. 6 shows a flowchart of step S233 in the uplink data transmission method provided by another embodiment of the present application.

FIG. 7 shows another flowchart of step S233 in the uplink data transmission method provided by another embodiment of the present application.

FIG. 8 shows a flowchart of a method for transmitting uplink data provided by an embodiment of the present application.

Fig. 9 shows a flowchart of a method for transmitting uplink data according to another embodiment of the present application.

FIG. 10 shows a flowchart of step S330 in the uplink data transmission method provided by another embodiment of the present application.

Fig. 11 shows a flowchart of a method for transmitting uplink data according to still another embodiment of the present application.

Fig. 12 shows a block diagram of a device for transmitting uplink data according to an embodiment of the present application.

FIG. 13 is a block diagram of a terminal device for executing the uplink data transmission method according to the embodiment of the present application according to an embodiment of the present application.

Fig. 14 is a storage unit for storing or carrying program codes for implementing the uplink data transmission method according to the embodiment of the present application.

Detailed ways

In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application.

Hybrid Automatic Repeat Request (HARQ), as a retransmission mechanism, is a combination of Forward Error Correction (FEC) and Automatic Repeat Request (ARQ) methods. technology. Its working principle can be summarized as follows: the base station can use FEC technology to correct the correctable part of all errors to reduce the number of retransmissions; for errors that cannot be corrected by FEC, the base station can request the terminal device to retransmit data through the ARQ mechanism. The base station can use the error detection code to detect whether the received data packet is in error. If there is no error, the base station can send an affirmative acknowledgment (ACK, Acknowledgement) to the terminal device. After the terminal device receives the ACK, it can then send the next data packet. If an error occurs, the base station can send a negative acknowledgement (NACK, Negative Acknowledgement) to the terminal device, and the terminal device can resend the same data packet after receiving the NACK.

Please refer to FIG. 1, which is a schematic diagram of a communication system architecture applicable to an embodiment of the present application. The uplink data transmission method provided in the embodiment of the present application can be applied to the communication system 10 shown in FIG. 1. As shown in FIG. 1, the communication system 10 includes a terminal device 100 and a network device 200, and the terminal device 100 and the network device 200 are at least connected through a 5G network communication.

In some embodiments, the terminal device 100 may also be referred to as user equipment (UE), mobile station (MS), mobile terminal (MT), etc., which is a way of providing voice or other services to users. Equipment for business data connectivity. As a way, the terminal device 100 may be a handheld device with a wireless connection function, a vehicle-mounted device, or the like. As another way, the terminal device 100 can also be a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, or an industrial control device. There are no restrictions on the wireless terminals used in unmanned driving, wireless terminals in smart homes, and so on.

In some embodiments, the network device 200 may be a device that is deployed in a wireless access network and can communicate with the terminal device 100 wirelessly, and may include a base station (BS). Among them, the base station may also have many forms, such as macro base stations, micro base stations, relay stations, and access points.

When the network device 200 is a base station, the uplink transmission process in the communication system 10 may be: the base station issues an uplink scheduling information to the terminal device 100, and the terminal device 100 uses the corresponding time and frequency domain resources according to the content of the uplink scheduling information. Send uplink data. Wherein, the uplink scheduling information is scheduling information used for uplink data transmission, and may include resource information, modulation and coding information, power control information, etc., allocated by the base station to the terminal device 100.

In some embodiments, in order to improve the reliability of data transmission, the terminal device 100 may send uplink data through the HARQ process. It should be noted that the terminal device 100 may include multiple parallel HARQ processes, each HARQ process has an HARQ identification (identification, ID), and different HARQ processes can be distinguished by the HARQ ID.

Since the current 5G standard cancels the physical HARQ indicator channel (PHICH), when a terminal device sends an uplink data to the base station, the base station has no way to tell the terminal device whether the uplink data packet has been correctly received and decoded. That is, the base station will not reply ACK or NACK to the terminal device. Therefore, the terminal device can only determine whether the uplink data packet needs to be retransmitted by whether the new data indicator (NDI) cell is inverted in the next uplink scheduling information issued by the base station. Among them, when the next NDI value is different from the current NDI value (that is, the NDI is flipped), it means that the uplink data packet sent this time has been correctly received and decoded.

In this way, because the base station does not directly feed back the result of whether the uplink data packet has been correctly received and decoded to the terminal device, the terminal device can only determine according to the next uplink scheduling information issued by the base station. Therefore, if the terminal device does not receive the uplink scheduling information, it usually assumes that the uplink data packet has been correctly received by the base station and successfully decoded.

However, the inventor found in research that if the uplink scheduling information is not correctly decoded by the terminal device, the terminal device will misjudge that the previous uplink data has been correctly received and decoded by the base station, so that no retransmission will be performed. Among them, the situation that the uplink scheduling information is not correctly decoded by the terminal device may be: when the network signal is relatively poor, if the base station sends an uplink scheduling information to the terminal device, the terminal device may cause the uplink scheduling information to be incorrect due to the poor network signal. It is judged that it is not sent to itself, so that the uplink scheduling information is not correctly decoded by the terminal device. Therefore, the terminal device will not always obtain the uplink scheduling information, and then defaults that the previous uplink data has been correctly received and decoded by the base station, and the uplink data will not be retransmitted.

In this way, the possible result is that the retransmission of the previous uplink data is misjudged. In addition, because the terminal device misjudged the successful reception of the previous uplink data, it may have other redundancy versions of the uplink data packet (each uplink data packet sent will have several redundancy versions on the terminal side, and it will be sent during retransmission. The redundant version can realize the soft combination gain) for clearing, resulting in the terminal equipment not having the backup of the uplink data. Moreover, because the uplink data packet has not been retransmitted for a long time, when the RLC (Radio Link Control, radio link control) layer or the application layer finds that it needs to be retransmitted, the uplink data packet needs to be rebuilt, which causes a waste of terminal processing resources.

After long-term research, the inventor proposed an uplink data transmission method, device, terminal equipment, and storage medium provided by the embodiments of this application. When the terminal equipment does not obtain uplink scheduling information, it can be based on the uplink data transmission method. Transmit power to realize the retransmission of uplink data. The uplink data transmission method of the embodiment of the present application will be described in detail below.

Please refer to FIG. 2, which shows a schematic flowchart of a method for transmitting uplink data provided by an embodiment of the present application. In a specific embodiment, the uplink data transmission method can be applied to the uplink data transmission apparatus 400 as shown in FIG. 12 and the terminal equipment 100 configured with the uplink data transmission apparatus 400 (FIG. 13). The following will take a terminal device as an example to describe the specific process of this embodiment, where the terminal device applied in this embodiment may be the above-mentioned terminal device, which is not limited here. The process shown in FIG. 1 will be described in detail below, and the uplink data transmission method may specifically include the following steps:

Step S110: Send uplink data.

In the embodiment of the present application, when the terminal device detects that uplink data arrives, it may send the uplink data. Among them, the uplink data may be various types of service data, for example, video service data, voice service data, etc., which are not limited here.

In some embodiments, the terminal device may be uplink data sent after obtaining uplink scheduling information. Wherein, the uplink scheduling information may include the time when the uplink data is sent and the data of the frequency domain resource to be sent. Therefore, the terminal device can send uplink data on the determined time and frequency domain resources.

As an implementation manner, the uplink scheduling information may be issued by a network device. Specifically, the network device may send DCI (Downlink Control Information, downlink control information) to the terminal device, and the DCI may include uplink scheduling information, uplink scheduling information, and other control information, so that the terminal device can obtain the DCI according to the acquired DCI To uplink scheduling information.

As a way, the terminal device can send an uplink scheduling request to the network device according to the uplink data that needs to be sent to inform the network device that it has uplink data to transmit, so that the network device can determine whether to allocate uplink resources to the terminal device. When the network device determines to allocate uplink resources, it can issue an uplink scheduling information to the terminal device.

As another implementation manner, the uplink scheduling information may also be issued by a target device that receives uplink data, so that the terminal device can send uplink data to the target device. It is not limited here.

In other embodiments, in order to increase the transmission speed of uplink data, the terminal device may also directly send the uplink data without waiting for the issued uplink scheduling information when detecting that there is uplink data to be transmitted.

It should be noted that the object to which the above-mentioned terminal device sends uplink data is not limited in this application. For example, it may be the aforementioned network device, that is, the terminal device can send uplink data to the aforementioned network device. It can also be other devices, but the uplink resources can be allocated by network devices.

Step S120: When the uplink scheduling information is not obtained within the first time period, obtain the transmission power of the terminal device to send the uplink data, and the uplink scheduling information is used to instruct the terminal device to resend the uplink data or send new data. Upstream data.

In the embodiment of the present application, after sending uplink data, the terminal device may wait to receive uplink scheduling information to determine whether to resend the previous uplink data or to send new uplink data according to the uplink scheduling information. As a way, the uplink scheduling information may carry NDI information elements, and the NDI information elements may be used to indicate whether to perform retransmission. Therefore, the terminal device can determine whether to retransmit the previous uplink data according to the NDI cell value in the uplink scheduling information.

Due to possible reasons such as poor network signal or currently not issuing uplink scheduling information, the terminal device does not obtain the uplink scheduling information. Therefore, a first time length can be set, and when the terminal device obtains the uplink scheduling information within the first time length, it can confirm whether to resend the previous uplink data according to the NDI cell value in the uplink scheduling information.

In some embodiments, the above-mentioned first duration may be the maximum waiting duration for the terminal device to wait to receive the uplink scheduling information, and may be pre-stored in the terminal device. As a way, the first duration can be specifically set according to specific application scenarios. For example, when the uplink data belongs to immediate data, the corresponding first duration is greater than when the upstream data belongs to non-immediate data. As another way, the first duration may also be a default value, and the default value may be artificially set, or may be the maximum waiting time for receiving uplink scheduling information specified by the 5G network protocol. The specific first duration is not limited in the embodiment of the present application.

When the terminal device does not obtain the uplink scheduling information within the first time period, the transmission power of the uplink data sent by the terminal device may be obtained, so as to determine whether to retransmit the previous uplink data according to the transmission power. In this way, when the uplink scheduling information is not obtained, the terminal equipment can automatically evaluate whether the base station receives and decodes the uplink data correctly according to the transmit power of the uplink data, instead of directly assuming that the uplink data packet has been correctly received by the base station and successfully decoded , Reduce the probability of service interruption caused by data packet loss, and effectively ensure the quality of uplink transmission.

Wherein, the transmission power of the terminal device to send uplink data can be the transmission power of the network device instructing the terminal device to send the uplink data currently, or it can be the transmission power of the terminal device after the transmission fails and is increased according to the protocol. For example, the protocol stipulates that when a terminal device fails to perform random access, it needs to increase the transmission power of the terminal device. The specific transmission power is not limited here, and only the transmission power used by the terminal device for uplink data transmission needs to be obtained.

It can be understood that, because network devices such as the base station side can currently perform power control on the transmission power of the terminal device, the transmission power of each terminal device reaching the base station is kept to a minimum. And when the base station detects that the uplink transmission of the terminal device has a high bit error rate, the base station will notify the terminal device to increase the transmission power. Therefore, the transmission power is correlated with the bit error rate of the uplink transmission of the terminal device, and the bit error rate of the uplink transmission of the terminal device will affect the correct reception and decoding of the uplink data by the base station, so that the transmission power of the terminal device is consistent with that of the base station. The probability of correctly receiving and decoding the uplink data is correlated. Therefore, the terminal equipment can evaluate whether the base station correctly receives and decodes the uplink data according to the transmit power of the uplink data, so as to determine whether to retransmit the uplink data.

Step S130: Determine whether the uplink data needs to be retransmitted according to whether the transmit power satisfies the power condition.

In the embodiment of the present application, when the transmission power of the terminal device to send uplink data is acquired, the terminal device can determine whether the transmission power meets the power condition, and thereby determine whether the uplink data needs to be retransmitted.

In some embodiments, it may be determined that it is necessary to re-uplink data when the transmit power meets the power condition. That is, when the transmit power meets the power condition, it can be considered that the uplink data packet has not been correctly received and decoded by the base station, and the terminal device can retransmit the uplink data so that the base station can correctly receive and decode the uplink data. When the transmit power does not meet the power condition, it can be considered that the uplink data packet has been correctly received and decoded by the base station, and the terminal device does not need to retransmit the uplink data.

As an implementation manner, the power condition may be a condition used to characterize the abnormal transmission power of the terminal device. For example, the transmission power is at a high value for a long time, and the previous transmission power is greater than the power threshold, etc., which are not limited here. That is to say, when the transmission power meets the power condition, it can be considered that the current transmission power of the terminal device is in an abnormal state, and the probability that the uplink data is not correctly received and decoded by the base station is high. In order to reduce the packet loss rate and ensure the quality of uplink transmission, the terminal device can retransmit the uplink data. Similarly, when the transmission power does not meet the power condition, it can be considered that the current transmission power of the terminal device is not in an abnormal state, and the probability that the uplink data is not correctly received and decoded by the base station is low. In order to reduce the network load and ensure the uplink transmission quality of other terminal devices, the terminal device may not perform the uplink data retransmission operation.

In other embodiments, it may also be determined that there is no need to re-uplink data when the transmit power meets the power condition. In other words, when the transmit power meets the power condition, it can be considered that the uplink data packet has been correctly received and decoded by the base station, and the terminal device does not need to retransmit the uplink data. When the transmit power does not meet the power condition, it can be considered that the uplink data packet has not been correctly received and decoded by the base station, and the terminal device can retransmit the uplink data so that the base station can correctly receive and decode the uplink data.

As an implementation manner, the power condition may be a condition used to characterize that the transmission power of the terminal device is normal. For example, the transmission power has been at a low value for a long time, and the previous transmission power has been lower than the specified power value, etc., which is not limited here. That is to say, when the transmission power meets the power condition, it can be considered that the current transmission power of the terminal device is in a normal state, and the probability that the uplink data is correctly received and decoded by the base station is high. In order to reduce the network load and ensure the uplink transmission quality of other terminal devices, the terminal device may not perform the uplink data retransmission operation. Similarly, when the transmission power does not meet the power condition, it can be considered that the current transmission power of the terminal device is not in a normal state, and the probability that the uplink data is not correctly received and decoded by the base station is high. In order to reduce the packet loss rate and ensure the quality of uplink transmission, the terminal device can retransmit the uplink data.

In some embodiments, when it is determined that the uplink data needs to be retransmitted, the terminal device may notify the execution module to start the retransmission operation. As a way, it may re-initiate a scheduling request to the network device to apply for retransmission of the uplink data. Further, the terminal device may also notify the RLC layer to transmit the uplink data through other HARQ processes.

In the uplink data transmission method provided by the embodiment of the application, after uplink data is sent, when the uplink scheduling information is not obtained within the first period of time, the transmission power of the uplink data sent by the terminal device is obtained, and whether the transmission power satisfies It is determined whether the uplink data needs to be retransmitted in the power condition. Wherein, the uplink scheduling information is used to instruct the terminal equipment to resend the uplink data or send new uplink data. Therefore, in the case that the uplink scheduling information is not obtained, the terminal equipment can also determine whether to retransmit the uplink data through the transmission power of the uplink data, so as to realize timely retransmission and reduce the loss of uplink data. The probability of business interruption ensures business continuity and is easy to implement.

Please refer to FIG. 3, which shows a schematic flowchart of an uplink data transmission method provided by another embodiment of the present application. The following will elaborate on the process shown in FIG. 3, and the uplink data transmission method may specifically include the following steps:

Step S210: Send uplink data.

In the embodiment of the present application, step S210 can refer to the content of the foregoing embodiment, which will not be repeated here.

Step S220: When the uplink scheduling information is not obtained within the first time period, obtain the transmit power when the uplink data is sent in the preset time period before the current time.

In some embodiments, the terminal device may record the transmit power of each uplink data sent. In this way, when the terminal device sends uplink data to the network device at the current time, if the uplink scheduling information is not obtained within the first time period, the terminal device can determine the preset time period before the current time according to the current time, so that it can be viewed from the history In the recorded transmission power for each uplink data transmission, the transmission power when uplink data is transmitted within a preset time period is acquired.

In some embodiments, the preset time period may be an analyzable time period, that is, there are enough transmit powers in the preset time period for effective analysis. In some embodiments, the more the preset time period is concentrated toward the current moment, the higher the validity of the data, and the more reliable the retransmission determination result is obtained.

As a way, the preset time period may be a time period of a fixed length of time. That is, the time period corresponding to the fixed time length before the current time is the preset time period, so that the terminal device can obtain the transmission power when sending uplink data within the fixed time length. Among them, the fixed time length can be set by the user. For example, the fixed time length is set to 20ms, and the preset time period is the time window 20ms before the current moment. If the terminal device sends uplink data 5 times within the 20ms, the terminal device can obtain the uplink data sent every time out of the 5 times. The transmit power of the data.

As another way, the preset time period may be a time period of a fixed number of transmissions, that is, the time period corresponding to the fixed number of transmissions before the current moment is the preset time period, so that the terminal device can directly obtain the time period. The transmit power for each uplink data transmission in a fixed number of transmissions. The fixed number of transmissions can be set by the user. For example, the fixed number of transmissions is set to 10 times, and the preset time period is the time window corresponding to the uplink data sent 10 times before the current moment, and the terminal device can obtain the transmission power of each uplink data sent in the 10 times.

As yet another manner, the preset time period may be a time period with a fixed number of uplink subframes. That is to say, the time period corresponding to the fixed number of uplink subframes before the current moment is the preset time period, so that the terminal device can obtain the transmit power each time uplink data is sent within the preset time period, that is, each The transmit power of the number of uplink subframes. For example, the preset time period may be set to 20 uplink subframes before the current uplink subframe.

Step S230: Determine whether the uplink data needs to be retransmitted according to whether the transmit power satisfies the power condition.

In the embodiment of this application, after the terminal device obtains the transmit power when sending uplink data in a preset time period before the current moment, it can determine whether the power condition is satisfied according to the transmit power in the preset time period, thereby judging whether Need to resend the upstream data. .

In order to improve the reliability of uplink data transmission, the terminal device can evaluate whether to retransmit according to the overall transmit power in a period of time before the current moment. In some embodiments, when the power condition is a condition used to characterize the abnormal transmission power of the terminal device, the terminal device can determine whether the transmission power in the preset time period before the current moment meets the power condition, so as to determine whether the power condition is before the current moment. Whether the transmit power in the preset period of time is in an abnormal state. If it is determined that it is in an abnormal state, there is a high probability that the uplink data sent at the current moment is not correctly received and decoded by the base station, and the terminal device can determine that retransmission is required. In order to reduce the packet loss rate and ensure the quality of uplink transmission, the terminal device can retransmit the uplink data. If it is determined that it is not in an abnormal state, the probability that the uplink data sent at the current moment is not correctly received and decoded by the base station is low, and the terminal device may not retransmit the uplink data.

In some embodiments, the above-mentioned terminal device determines whether the transmit power within the preset time period meets the power condition, which may be determining whether the average transmit power within the preset time period meets the retransmission condition. That is, it is determined whether the average transmit power in the preset time period is in an abnormal state. Specifically, referring to FIG. 4, step S230 may include:

Step S231: Determine the average transmission power within a preset time period according to the transmission power.

In some embodiments, the terminal device may calculate the linear average power in the preset time period according to the transmission power of each time within the preset time period. Therefore, the terminal device can use the linear average power as the average transmit power within the preset time period.

among them,

TxPower(i) is the transmit power when the terminal device sends uplink data for the i-th time in the preset time period.

In some other implementation manners, the terminal device may also calculate the weighted average power in the preset time period according to the transmission power of each time within the preset time period. Therefore, the terminal device can use the weighted average power as the average transmit power in the preset time period. Specifically, referring to FIG. 5, step S231 may include:

Step S2311: Obtain the sequence of the time for each uplink data transmission within the preset time period.

In some embodiments, the terminal device may determine the corresponding weight of each transmission power according to the time when the uplink data is transmitted each time. Specifically, after acquiring the preset time period, the terminal device can determine the time for each uplink data transmission within the preset time period, and then can arrange the time for each uplink data transmission in the order of first to last. .

In some embodiments, after the terminal device determines the sequence of sending uplink data each time within a preset period of time, it can compare the time of each uplink data transmission to each transmission power according to the one-to-one relationship. The transmission power of each time is also arranged correspondingly in the order of time. Thus, the time context of each transmission power can be determined.

Step S2312: Determine the magnitude relationship between the weights corresponding to each transmission power according to the sequence, wherein the closer the time to the current moment is, the greater the weight corresponding to the transmission power.

In some embodiments, when the terminal device obtains the sequence of the time when the uplink data is sent each time, the terminal device may determine the magnitude relationship between the weights corresponding to each transmission power. Among them, the magnitude relationship between the weights corresponds to the last order of the transmission time. That is, the later the transmission time, the greater the weight of the corresponding transmission power; the earlier the transmission time, the smaller the weight of the corresponding transmission power. It can also be understood that the closer the transmission time to the current time, the greater the weight of the corresponding transmission power; the farther the transmission time is from the current time, the smaller the weight of the corresponding transmission power. Wherein, the magnitude relationship between the weights corresponding to each transmission power may be a relationship that gradually increases in a chronological order. Among them, the gradually increasing relationship may be an arithmetic increase relationship or a proportional increase relationship, which is not limited here.

Step S2313: Perform a weighted average of each transmission power according to the magnitude relationship to obtain a weighted average power, which is used as the average transmission power in the preset time period. .

Since the terminal equipment determines the magnitude relationship between the weights corresponding to each transmission power according to the time sequence, the terminal equipment can obtain the weight corresponding to each transmission power according to the time context of each transmission power . Wherein, the specific size of the weight corresponding to each transmission power may not be a limitation, and it only needs to satisfy the above size relationship.

For example, according to the time sequence, the determined weight relationship for each transmission power can be set according to the following formula: 0≤P _{1 ≤P 2} ≤...≤P _i ≤...≤P _n ≤ 1 and

Wherein each transmit power arrayed before and after the order according to the corresponding transmission time, corresponding to the weight of each weight and the transmit power _{P 1 P 2 ... P i ...} P n correspond one by one. And the transmission time closest to the current moment, the weight of the corresponding transmission power is P _n , and the transmission time farthest from the current moment, the weight of the corresponding transmission power is P ₁ .

After obtaining the weight corresponding to each transmission power, the terminal device may perform a weighted average of each transmission power to obtain the weighted average power, which is used as the average transmission power in the preset time period. Wherein, the weighted average of each transmission power may be to multiply each transmission power with its corresponding weight and then sum to obtain the weighted average power. Therefore, the terminal device can use the weighted average power as the average transmit power in the preset time period.

That is,

Among them, TxPower(i) is the transmit power when the terminal device sends uplink data for the i-th time in the preset time period, and P _i is the weight corresponding to the i-th transmit power.

Step S232: Compare the average transmit power with a reference threshold.

When the terminal device obtains the average transmission power in the preset time period, it can compare the average transmission power with a reference threshold to determine whether the average transmission power in the preset time period is in an abnormal state. Wherein, the reference threshold value may be a power value used to measure whether the average transmission power is in an abnormal state, and may be stored in the terminal device in advance.

Step S233: When the comparison result of the average transmit power and the reference threshold meets the retransmission condition, it is determined that the uplink data needs to be retransmitted.

In some embodiments, when it is confirmed that the average transmission power is in an abnormal state according to the comparison result of the average transmission power and the reference threshold, the probability that the uplink data is not correctly received and decoded by the base station is high. Therefore, it can be considered that the comparison result meets the retransmission condition, and the terminal device can retransmit the uplink data to reduce the packet loss rate.

In some implementation manners, the aforementioned reference threshold may be the maximum transmission power, and the maximum transmission power may be the upper limit of the power of the terminal device to transmit uplink data specified by the 5G network protocol. As a way, it can be the upper limit of the power for sending uplink data to the network device. The terminal device can determine whether the average transmission power within the preset time is in an abnormal state according to the comparison result of the average transmission power and the maximum transmission power, so that it can evaluate whether the uplink data is correctly received and decoded by the base station. Specifically, referring to FIG. 6, step S233 may include:

Step S2331: Obtain the difference between the maximum transmission power and the average transmission power.

Since the base station detects that the terminal equipment has a high bit error rate in the uplink transmission, the base station will notify the terminal equipment to increase the transmission power. Therefore, if the average transmit power at the preset time is relatively high, it means that the uplink transmission of the terminal device within the preset time period has a high bit error rate, and the probability that the uplink data is not correctly received and decoded by the base station is also relatively high. Therefore, it is possible to determine whether the average transmission power is at a high value by obtaining the difference between the average transmission power and the power upper limit specified in the agreement, so as to evaluate whether the probability that the uplink data is not correctly received and decoded by the base station is also at a relatively high value. , And then determine whether to perform a retransmission operation.

Step S2332: When the difference is less than the first specified threshold, it is determined that the uplink data needs to be retransmitted.

Wherein, the first specified threshold is the minimum difference between the maximum transmission power and the average transmission power when the average transmission power is in a normal state. which is

When, the average transmit power is in a normal state. Among them, delta is the first specified threshold, and TxPower _max is the maximum transmit power. The first designated threshold can be pre-stored in the terminal device, and can be set reasonably according to the specific application environment. For example, it can be set to 3dB.

It can be understood that when the difference between the maximum transmit power and the average transmit power is less than the first specified threshold, it means that the average transmit power within the preset time period has approached the maximum transmit power. In other words, the terminal device needs The uplink data can only be transmitted with a consistently high power. Then the terminal equipment can estimate that the probability that the uplink data is not correctly received and decoded by the base station is relatively high, and thus can determine that the terminal equipment needs to resend the uplink data. To avoid the loss of uplink data packets, the terminal device can notify the execution module to start a retransmission operation to resend the uplink data.

In other embodiments, the above-mentioned reference threshold may also be the default power when the terminal device sends uplink data. The terminal device may determine whether the average transmit power within the preset time is in an abnormal state according to the comparison result of the average transmit power and the default power. , Which can evaluate whether the uplink data is correctly received and decoded by the base station. Specifically, referring to FIG. 7, step S233 may also include:

Step S2333: Obtain the difference between the average transmit power and the default power.

Wherein, the default power may be the transmitting power used by the terminal device when the base station does not require the base station to increase the transmitting power. The default power may be a reference power used to determine whether the average transmit power is too high. The specific default power value is not limited in this application, and it only needs to determine whether the average transmit power is too high.

In some embodiments, the default power can be the corresponding transmit power that can not only meet the minimum communication requirements, but also avoid unnecessary interference to other terminal devices, that is, when the terminal device uses the default power to transmit uplink data, it reaches the base station. Can be kept to a minimum. The default power may be set by the network device according to the specific situation of the terminal device. In other embodiments, the default power may also be an artificially set initial transmit power. For example, 10dB.

By obtaining the difference between the average transmit power and the default power, the terminal device can determine how much the average transmit power is higher than the default power, so that it can determine whether the average transmit power is too high or is close to the maximum transmit power based on the amount of higher power .

Step S2334: When the difference is greater than a second specified threshold, it is determined that the uplink data needs to be retransmitted.

Wherein, the second specified threshold is the maximum difference between the average transmission power and the default power when the average transmission power is in a normal state. The second specified threshold can be pre-stored in the terminal device, and can be set reasonably according to the specific application environment. For example, it can be set to 11dB.

It can be understood that when the difference between the average transmit power and the default power is greater than the second specified threshold, it means that the average transmit power in the preset time period is much greater than the default power and approaches the maximum transmit power. In other words, the terminal equipment needs to be able to transmit uplink data with a consistently high power. Then the terminal device can estimate that the probability that the uplink data is not correctly received and decoded by the network device is relatively high, so that it can be determined that the terminal device needs to resend the uplink data. To avoid the loss of uplink data packets, the terminal device can notify the execution module to start a retransmission operation to resend the uplink data.

For example, as shown in FIG. 8, FIG. 8 shows a flowchart of an uplink data transmission method according to an embodiment of the present application. Specifically, after receiving the uplink scheduling information issued by the network device, the terminal device may transmit uplink data, and wait for the next uplink scheduling information. At the same time, during the transmission of uplink data, the terminal device can record the power of each uplink data sent within a preset time period (that is, the sliding time window T). After the terminal device sends the uplink data, it can determine whether the uplink scheduling information is received within the first time period. If the uplink scheduling information is received, the terminal device can determine whether retransmission is required according to the indication of the scheduling information. If retransmission is instructed, the terminal device can perform the uplink data retransmission operation and continue to wait for the next uplink scheduling information. If it is instructed not to retransmit, it means to transmit new uplink data. Of course, if the uplink scheduling information is not received within the first time period, the terminal device can evaluate whether to perform retransmission based on the previously acquired transmission power. If it is determined that retransmission is required, the execution module can be notified to start the retransmission operation.

In some embodiments, when the power condition is a condition used to characterize that the transmit power of the terminal device is normal, the terminal device may also determine whether the transmit power in a preset time period before the current moment meets the power condition to determine the current moment Whether the transmit power in the previous preset period of time is in a normal state. If it is in a normal state, there is a high probability that the uplink data sent at the current moment has been correctly received and decoded by the base station. The terminal equipment may not retransmit the uplink data. If it is in an abnormal state, there is a high probability that the uplink data sent at the current moment is not correctly received and decoded by the base station, and the terminal device can determine that retransmission is required.

Wherein, in some embodiments, the above-mentioned terminal device determines whether the transmit power within the preset time period meets the power condition, which may be to determine whether the average transmit power within the preset time period is in a normal state. As an implementation manner, the difference between the average transmit power and the normal power may be obtained. If it is greater than a certain threshold, it is confirmed that the average transmit power is in an abnormal state. On the contrary, if it is less than or equal to a certain threshold, the average transmit power is confirmed. In a normal state. Among them, the normal power may be set according to the specific conditions of the terminal device, or may be a default normal power set artificially, which is not limited here. For example, 10dB.

It should be noted that the methods in step S210, step S220, and step S230 in the embodiment of the present application can also be applied to other embodiments.

In the uplink data transmission method provided in the embodiments of the present application, after uplink data is sent, when the uplink scheduling information is not obtained within the first time period, the uplink data is transmitted during the preset time period before the current time. Power, and determine whether the uplink data needs to be retransmitted according to whether the transmission power satisfies the power condition. Wherein, it is determined whether the uplink data needs to be retransmitted according to whether the transmission power meets the power condition. It may be determined that the uplink data needs to be retransmitted when the comparison result of the average transmission power within the preset time period and the reference threshold meets the retransmission condition. data. Therefore, in the case that the uplink scheduling information is not obtained, the terminal equipment can also evaluate whether to retransmit the uplink data through the overall transmission power within a period of time before the current moment, which improves the reliability of uplink transmission and reduces The probability of service interruption caused by the loss of uplink data ensures service continuity and user experience.

Please refer to FIG. 9, which shows a schematic flowchart of an uplink data transmission method provided by another embodiment of the present application. The process shown in FIG. 9 will be described in detail below, and the uplink data transmission method may specifically include the following steps:

Step S310: Send uplink data.

Step S320: When the uplink scheduling information is not acquired within the first time period, acquire the transmit power when the uplink data is sent in the preset time period before the current time.

Step S330: Determine whether the uplink data needs to be retransmitted according to whether the transmit power satisfies the power condition.

In the embodiment of the present application, step S310, step S320, and step S330 can refer to the content of the foregoing embodiment, and will not be repeated here.

In some embodiments, when the power condition is a condition used to characterize the abnormality of the transmission power of the terminal device, the above-mentioned terminal device determines whether the transmission power within the preset time period meets the power condition, or it may determine whether the transmission power within the preset time period meets the power condition. Whether the change trend of the transmission power is an increasing trend, that is, it is determined whether the average transmission power in the preset time period is in an abnormal state. Specifically, referring to FIG. 10, step S330 may include:

Step S331: Determine a power change trend within a preset time period according to the transmission power.

In some embodiments, the terminal device may determine the power change trend in the preset time period according to the transmission power of each time within the preset time period. As a way, a transmission time corresponding to each transmission power and each transmission power can be generated to generate a transmission power change curve, so that the power change trend within a preset time period can be determined according to the trend of the curve. Specifically, the terminal device may arrange the transmission time corresponding to each transmission power in chronological order on the time axis, and connect each transmission power corresponding to each transmission time with a line. Thereby, the temperature state curve of the motherboard is generated. Among them, the types of lines can be multiple, for example, broken lines, smooth curves, dashed lines, solid lines, and so on.

Step S332: When the power change trend is an increasing trend and the magnitude of increase is greater than a specified magnitude, it is determined that the uplink data needs to be retransmitted.

In some implementation manners, when the power change trend is an increasing trend and the magnitude of increase is greater than a specified magnitude, the terminal device may determine that the uplink data needs to be retransmitted. .

Wherein, the specified amplitude can be determined in real time according to the transmission power corresponding to the starting moment in the preset time period, which is not limited here. As a way, if the transmission power corresponding to the initial moment is high and the power change trend is increasing, the specified amplitude can be set to be small, that is, as long as the transmission power within the preset time period remains high If the value of, or is in a slowly increasing trend, the terminal device can determine that it needs to retransmit the uplink data. As another way, if the transmission power corresponding to the initial time is low and the power change trend is increasing, the specified amplitude can be set to be large, that is, the transmission corresponding to the later time within the preset time period The power has always maintained a very high value, and the transmission power at the initial moment has shown a trend of substantial increase, and the terminal device can determine that it is necessary to retransmit the uplink data.

It is understandable that if the transmission power corresponding to the initial moment of the preset time period is relatively small, and the magnitude of increase is relatively small, the retransmission is determined only from the power change trend to the increasing trend, and the retransmission misjudgment rate is high. . Because although the power change trend is an increasing trend, the transmission power of the preset time period is in a normal state, and the transmission power does not show a high value, therefore, the terminal device may determine not to perform a retransmission operation.

In some embodiments, when the power condition is a condition used to characterize that the transmitting power of the terminal device is normal, the above-mentioned terminal device determines whether the transmitting power meets the power condition, or whether the change trend of the transmitting power within a preset time period is determined. To reduce the trend, that is, to determine whether the transmit power in the preset time period before the current moment is in a normal state. If it is in a normal state, the terminal device may not retransmit the uplink data. If it is determined that it is in an abnormal state, the terminal device can determine that a retransmission is required.

Wherein, in some embodiments, when the power change trend is a decreasing trend and the decreasing magnitude is greater than a specified magnitude, the terminal device may determine that the transmission power is in a normal state, and the terminal device may not retransmit the uplink data. Conversely, if it is less than the specified range, the terminal device can determine that a retransmission is needed. In other embodiments, when the power change trend is a decreasing trend and the latest transmit power at the current moment is lower than the specified power, the terminal device can determine that the transmit power is in a normal state, and the terminal device may not retransmit the uplink data. . Conversely, if the power is higher than the specified power, the terminal device can determine that a retransmission is required. Among them, the designated power can be the set normal power.

In the uplink data transmission method provided in the embodiments of the present application, after uplink data is sent, when the uplink scheduling information is not obtained within the first time period, the uplink data is transmitted during the preset time period before the current time. Power, and determine whether the uplink data needs to be retransmitted according to whether the transmission power satisfies the power condition. Wherein, it is determined whether the transmission power needs to be retransmitted according to whether the transmission power satisfies the power condition. It may be determined that the uplink data needs to be retransmitted when the power change trend in the preset time period is an increasing trend and the increase amplitude is greater than a specified amplitude. Therefore, in the case that the uplink scheduling information is not obtained, the terminal equipment can also evaluate whether to retransmit the uplink data through the overall transmission power within a period of time before the current moment, which improves the reliability of uplink transmission and reduces The probability of service interruption caused by the loss of uplink data ensures service continuity and user experience.

Please refer to FIG. 11. FIG. 11 shows a schematic flowchart of an uplink data transmission method provided by another embodiment of the present application. The process shown in FIG. 11 will be described in detail below, and the uplink data transmission method may specifically include the following steps:

Step S410: Send uplink data.

In the embodiment of the present application, step S410 may refer to the content of the foregoing embodiment, which will not be repeated here.

Step S420: When the uplink scheduling information is not obtained within the first time period, obtain the sending time for the terminal device to send the uplink data.

In some embodiments, when the network load rate is relatively low, that is, when the network is relatively good, the probability that the uplink data is correctly received and decoded by the base station is higher, and the terminal device can usually also obtain the uplink downshift information issued by the network device. Therefore, when the network load rate is relatively low, there is no need to perform uplink data retransmission judgment based on the transmission power. Therefore, as an implementation manner, the terminal device may automatically perform uplink data retransmission judgment based on the transmission power when the network load rate is relatively high, that is, when the network is relatively poor.

In some embodiments, the network usually has a peak period of network usage, and the network during the peak period of network usage is usually poor. Therefore, the terminal device can determine whether the current network environment is in a poor network state according to the transmission time of the uplink data, that is, whether it is in the peak period of network usage, so that when it is determined that the network is relatively poor, the uplink data is replayed according to the transmission power. Pass judgment. Specifically, after the terminal device sends the uplink data, if the uplink scheduling information is not obtained within the first time period, the terminal device may obtain the sending time of the terminal device to send the uplink data.

Step S430: When the transmission time is within a specified time period, obtain the transmission power of the terminal device to transmit the uplink data, and the specified time period is the time when the load rate of the 5G network based on historical statistics is greater than the load threshold. period.

In some embodiments, after acquiring the sending time for sending the uplink data, the terminal device can determine whether the sending time is within a specified time period. Among them, the designated time period is the time period when the load rate of the 5G network based on historical statistics is greater than the load threshold.

Among them, the network load rate can also be understood as the utilization rate of the network bandwidth, which can be the ratio of the current network's actual communication volume to the maximum allowable communication volume, or the ratio of the current network's actual occupied bandwidth to the maximum available bandwidth. It is not limited here, as long as the load rate of the network reflects the state of the network.

In some embodiments, the load threshold may be stored in the terminal device, and may be specifically set according to a specific application environment, and the specific load threshold is not limited in the embodiment of the present application. As a way, the load threshold in remote areas can be set to be higher than the load threshold in central areas. For example, the load threshold in remote areas can be set to 80%, and the load threshold in central areas can be set to 60%.

In some embodiments, the terminal device can make real-time statistics on the load rate of the 5G network at each time of the day, and then comprehensively obtain the average load rate at each time of the day. When the terminal device obtains the average load ratio of the 5G network at each time of the day, it can determine the specified time period when the average load ratio is greater than the load threshold according to the load threshold, so as to obtain the time period during the peak period of network usage within a day. In other embodiments, the terminal device can also directly obtain historical statistics of the average load rate of the 5G network at each time of the day from other devices that can count the network load rate, so as to determine the above-mentioned specified time period. Not limited.

It is understandable that when the sending time of the uplink data is within the specified time period, it can be considered that the current network environment is in a relatively poor state, and the probability that the uplink data is not correctly received and decoded by the base station is high, and the terminal equipment may also suffer from The network is poor and the up-down information issued by the network device is not obtained. Therefore, it is necessary to further evaluate whether the uplink data is correctly received and decoded by the base station through the transmission power, and then determine whether to perform the retransmission of the uplink data. That is, when the transmission time of the uplink data is within a specified time period, the terminal device can obtain the transmission power of the uplink data sent by the terminal device, and make a retransmission decision based on the transmission power.

Step S440: Determine whether the uplink data needs to be retransmitted according to whether the transmit power satisfies the power condition.

In the embodiment of the present application, step S440 can refer to the content of the foregoing embodiment, which will not be repeated here.

Step S450: When the uplink scheduling information is acquired within the first time period, resend the uplink data or send new uplink data.

In the embodiment of the present application, after sending the uplink data, the terminal device may wait to receive the issued uplink scheduling information. If the terminal device obtains the uplink scheduling information within the first time period, it can directly determine whether to resend the previous uplink data or to send new uplink data according to the uplink scheduling information. As a way, the uplink scheduling information may carry NDI information elements, and the NDI information elements may be used to indicate whether to perform retransmission. Therefore, the terminal device can determine whether to retransmit the previous uplink data according to the change of the NDI cell value in the uplink scheduling information.

In some embodiments, when the terminal device obtains the uplink scheduling information, it can obtain the NDI cell value in the uplink scheduling information, and then compare the NDI cell value with the NDI cell value in the uplink scheduling information obtained last time. Compare. When the current NDI cell value is the same as the last NDI cell value, that is, when the NDI is not overturned, the terminal device can determine that the previous uplink data needs to be retransmitted. When the current NDI cell value is different from the last NDI cell value, that is, when the NDI is inverted, the terminal device can determine that it does not need to retransmit the previous uplink data and determine to send new uplink data.

In the uplink data transmission method provided in the embodiments of the present application, after uplink data is sent, when uplink scheduling information is not obtained within the first time period, the transmission time of the uplink data transmitted by the terminal device is obtained, and the transmission time is at Within a specified time period, it is determined whether to resend the uplink data according to whether the transmission power meets the power condition. Wherein, the uplink scheduling information is used to instruct the terminal equipment to resend the uplink data or send new uplink data. Therefore, when the uplink scheduling information is not obtained, the current network environment can be judged whether the network is relatively poor, and when the network is determined to be relatively poor, the uplink data retransmission is determined according to the transmission power to reduce the network resource occupancy rate. Improve the quality of uplink transmission and ensure business continuity.

Please refer to FIG. 12, which shows a structural block diagram of an uplink data transmission apparatus 400 provided by an embodiment of the present application. The uplink data transmission apparatus 400 is applied to terminal equipment, which communicates at least through a 5G network. The uplink data transmission device 400 includes: a data transmission module 410, an information acquisition module 420, and a retransmission determination module 430. Wherein, the data sending module 410 is used to send uplink data; the information obtaining module 420 is used to obtain the transmission power of the terminal device to send uplink data when the uplink scheduling information is not obtained within the first time period. The uplink scheduling information is used to instruct the terminal device to retransmit the uplink data or to send new uplink data; the retransmission determination module 430 is used to determine whether the uplink data needs to be retransmitted according to whether the transmit power satisfies the power condition .

In some embodiments, the information obtaining module 420 may be specifically configured to obtain the transmit power when uplink data is sent within a preset time period before the current moment.

Under this embodiment, in some implementations, the retransmission determination module 430 may include: a power determination unit, a power comparison unit, and a power determination unit. Wherein, the power determination unit is used to determine the average transmission power within a preset time period according to the transmission power; the power comparison unit is used to compare the average transmission power with a reference threshold; the power judgment unit is used to determine the average transmission power When the comparison result of the transmission power and the reference threshold meets the retransmission condition, it is determined that the uplink data needs to be retransmitted.

Further, as an implementation manner, the foregoing reference threshold may be a maximum transmit power, which is an upper limit of power when the terminal device transmits uplink data specified by a 5G network, and the foregoing power judgment unit may include: a first difference The obtaining subunit is used to obtain the difference between the maximum transmitting power and the average transmitting power; the first difference judging subunit is used to determine when the difference is less than a first specified threshold, that it is necessary to retransmit the Upstream data.

In this embodiment, the above-mentioned power determining unit may include: a sequence obtaining subunit, configured to obtain the sequence of each uplink data transmission time within a preset time period; and a weight determining subunit, configured according to the sequence, Determine the magnitude relationship between the weights corresponding to each transmit power, where the weight corresponding to the transmit power at a time closer to the current moment is greater; the power averaging subunit is used to, according to the magnitude relationship, The weighted average of each transmission power is performed to obtain the weighted average power, which is used as the average transmission power in the preset time period.

Further, as another implementation manner, the aforementioned reference threshold value is the default power when the terminal device sends uplink data, and the aforementioned power judgment unit may include: a second difference obtaining subunit, configured to obtain the average transmit power and the The difference value of the default power; a second difference value judging subunit, configured to determine that the uplink data needs to be retransmitted when the difference value is greater than a second specified threshold.

Under this embodiment, in other implementation manners, the retransmission determining module 430 may include: a trend determining unit, configured to determine a power change trend within a preset time period according to the transmission power; and a trend determining unit, configured to When the power change trend is an increasing trend and the magnitude of increase is greater than a specified magnitude, it is determined that the uplink data needs to be retransmitted.

In some embodiments, the information obtaining module 420 may also include: a time obtaining unit, configured to obtain the sending time of the terminal device to send the uplink data when the uplink scheduling information is not obtained within the first time period; a time judging unit, Used to obtain the transmission power of the terminal device to send the uplink data when the transmission time is within a specified time period, where the specified time period is the time when the historically statistic load rate of the 5G network is greater than the load threshold segment.

In some embodiments, the device 400 for transmitting uplink data may further include a data retransmission module. The data retransmission module is configured to resend the uplink data when it is determined that the uplink data needs to be retransmitted.

Those skilled in the art can clearly understand that, for the convenience and conciseness of the description, the specific working process of the device and module described above can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, the coupling between the modules may be electrical, mechanical or other forms of coupling.

In addition, the functional modules in the various embodiments of the present application may be integrated into one processing module, or each module may exist alone physically, or two or more modules may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or software functional modules.

In the solution provided by this application, after uplink data is sent, when the uplink scheduling information is not obtained within the first time period, the terminal device obtains the transmit power of the uplink data sent by the terminal device, and determines whether it needs to be renewed according to whether the transmit power meets the power condition. Sending the uplink data. Wherein, the uplink scheduling information is used to instruct the terminal equipment to resend the uplink data or send new uplink data. Therefore, in the case that the uplink scheduling information is not obtained, the terminal equipment can also determine whether to retransmit the uplink data through the transmission power of the uplink data, reducing the probability of service interruption caused by the loss of uplink data, and ensuring Continuity of business.

Please refer to FIG. 13, which shows a structural block diagram of a terminal device provided by an embodiment of the present application. The terminal device 100 may be a terminal device capable of running application programs, such as a PC computer or a mobile terminal. The terminal device 100 in this application may include one or more of the following components: a processor 110 and a memory 120. One or more application programs, where one or more application programs may be stored in the memory 120 and configured to be composed of one or more Multiple processors 110 execute, and one or more programs are configured to execute the method described in the foregoing method embodiment.

The processor 110 may include one or more processing cores. The processor 110 uses various interfaces and lines to connect various parts of the entire terminal device 100, and executes by running or executing instructions, programs, code sets, or instruction sets stored in the memory 120, and calling data stored in the memory 120. Various functions and processing data of the terminal device 100. Optionally, the processor 110 may use at least one of digital signal processing (Digital Signal Processing, DSP), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), and Programmable Logic Array (Programmable Logic Array, PLA). A kind of hardware form to realize. The processor 110 may be integrated with one or a combination of a central processing unit (CPU), a graphics processing unit (GPU), a modem, and the like. Among them, the CPU mainly processes the operating system, user interface, and application programs; the GPU is used for rendering and drawing of display content; the modem is used for processing wireless communication. It can be understood that the above-mentioned modem may not be integrated into the processor 110, but may be implemented by a communication chip alone.

The memory 120 may include random access memory (RAM) or read-only memory (Read-Only Memory). The memory 120 may be used to store instructions, programs, codes, code sets or instruction sets. The memory 120 may include a program storage area and a data storage area, where the program storage area may store instructions for implementing an operating system and instructions for implementing at least one function (such as touch function, sound playback function, image playback function, etc.) , Instructions used to implement the following various method embodiments, etc. The data storage area can also store data (such as phone book, audio and video data, and chat record data) created by the terminal 100 during use.

Please refer to FIG. 14, which shows a structural block diagram of a computer-readable storage medium provided by an embodiment of the present application. The computer-readable medium 800 stores program code, and the program code can be invoked by a processor to execute the method described in the foregoing method embodiment.

The computer-readable storage medium 800 may be an electronic memory such as flash memory, EEPROM (Electrically Erasable Programmable Read Only Memory), EPROM, hard disk, or ROM. Optionally, the computer-readable storage medium 800 includes a non-transitory computer-readable storage medium. The computer-readable storage medium 800 has storage space for the program code 810 for executing any method steps in the above-mentioned methods. These program codes can be read from or written into one or more computer program products. The program code 810 may be compressed in a suitable form, for example.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the application, not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions recorded in the foregoing embodiments are modified, or some of the technical features thereof are equivalently replaced; these modifications or replacements do not drive the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (20)

1. A method for transmitting uplink data, characterized in that it is applied to a terminal device that communicates at least through a 5G network, and the method includes:

   Send uplink data;

   When the uplink scheduling information is not obtained within the first time period, obtain the transmission power of the terminal device to send uplink data, where the uplink scheduling information is used to instruct the terminal device to resend the uplink data or send new uplink data ；

   It is determined whether the uplink data needs to be retransmitted according to whether the transmission power satisfies the power condition.
2. The method according to claim 1, wherein the obtaining the transmission power of the uplink data sent by the terminal device comprises:

   Acquire the transmit power when uplink data is sent within a preset time period before the current moment.
3. The method according to claim 1 or 2, wherein the judging whether the uplink data needs to be retransmitted according to whether the transmit power satisfies the power condition comprises:

   Determine the average transmission power within a preset time period according to the transmission power;

   Comparing the average transmit power with a reference threshold;

   When the comparison result of the average transmit power and the reference threshold meets the retransmission condition, it is determined that the uplink data needs to be retransmitted.
4. The method according to claim 3, wherein the reference threshold value is a maximum transmission power, and the maximum transmission power is an upper limit of the power when the terminal device transmits uplink data specified by the 5G network, and the current When the comparison result between the average transmit power and the reference threshold meets the retransmission condition, determining that the uplink data needs to be retransmitted includes:

   Obtaining the difference between the maximum transmission power and the average transmission power;

   When the difference is less than the first specified threshold, it is determined that the uplink data needs to be retransmitted.
5. The method according to claim 3, wherein the reference threshold is the default power when the terminal device transmits uplink data, and the comparison result of the average transmit power and the reference threshold meets the retransmission condition When determining that the uplink data needs to be retransmitted, including:

   Acquiring the difference between the average transmit power and the default power;

   When the difference is greater than the second specified threshold, it is determined that the uplink data needs to be retransmitted.
6. The method according to any one of claims 3-5, wherein the determining the average transmission power within a preset time period according to the transmission power comprises:

   Obtain the sequence of the time of each uplink data transmission within the preset time period;

   According to the sequence, determine the magnitude relationship between the weights corresponding to each transmission power, wherein the closer the time to the current moment is, the greater the weight corresponding to the transmission power;

   According to the magnitude relationship, the weighted average of each transmission power is performed to obtain the weighted average power, which is used as the average transmission power in the preset time period.
7. The method according to claim 1 or 2, wherein the judging whether the uplink data needs to be retransmitted according to whether the transmit power satisfies the power condition comprises:

   Determine a power change trend within a preset time period according to the transmission power;

   When the power change trend is an increasing trend and the magnitude of increase is greater than a specified magnitude, it is determined that the uplink data needs to be retransmitted.
8. The method according to any one of claims 1-7, wherein when the uplink scheduling information is not obtained within the first time period, obtaining the transmission power of the terminal device to send uplink data comprises:

   When the uplink scheduling information is not obtained within the first time period, obtain the sending time of the uplink data sent by the terminal device;

   When the transmission time is within a specified time period, the transmission power of the terminal device for sending the uplink data is acquired, and the specified time period is a time period when the load rate of the 5G network according to historical statistics is greater than a load threshold.
9. The method according to any one of claims 1-8, characterized in that, after determining whether retransmission is required according to whether the transmit power satisfies the power condition, the method further comprises:

   When it is determined that the uplink data needs to be retransmitted, the uplink data is retransmitted.
10. An uplink data transmission device, which is characterized in that it is applied to a terminal device that communicates at least through a 5G network, and the device includes:

    Data sending module, used to send uplink data;

    An information acquisition module, configured to acquire the transmit power of the terminal device to send uplink data when the uplink scheduling information is not acquired within the first time period, where the uplink scheduling information is used to instruct the terminal device to resend the uplink data Or send new uplink data;

    The retransmission determination module is configured to determine whether the uplink data needs to be retransmitted according to whether the transmission power satisfies the power condition.
11. The apparatus according to claim 10, wherein the information obtaining module is specifically configured to obtain the transmit power when uplink data is sent within a preset time period before the current moment.
12. The apparatus according to claim 10 or 11, wherein the retransmission determination module comprises:

    A power determining unit, configured to determine the average transmission power in a preset time period according to the transmission power;

    A power comparison unit, configured to compare the average transmit power with a reference threshold;

    The power judging unit is configured to judge that the uplink data needs to be retransmitted when the comparison result of the average transmit power and the reference threshold meets the retransmission condition.
13. The apparatus according to claim 12, wherein the reference threshold is a maximum transmit power, and the maximum transmit power is an upper limit of power when the terminal device transmits uplink data specified by the 5G network, and the power judgment The unit includes:

    A first difference obtaining subunit, configured to obtain the difference between the maximum transmission power and the average transmission power;

    The first difference judging subunit is used for judging that the uplink data needs to be retransmitted when the difference is less than the first specified threshold.
14. The apparatus according to claim 12, wherein the reference threshold is a default power when the terminal device sends uplink data, and the power judgment unit comprises:

    A second difference obtaining subunit, configured to obtain the difference between the average transmit power and the default power;

    The second difference judging subunit is used for judging that the uplink data needs to be retransmitted when the difference is greater than a second specified threshold.
15. The device according to any one of claims 12-14, wherein the power determining unit comprises:

    The sequence acquisition subunit is used to acquire the sequence of the time when uplink data is sent each time within a preset time period;

    The weight determination subunit is used to determine the magnitude relationship between the weights corresponding to each transmission power according to the sequence, where the closer the time to the current moment is, the greater the weight corresponding to the transmission power;

    The power averaging subunit is used for weighting and averaging each transmission power according to the size relationship to obtain the weighted average power, which is used as the average transmission power in the preset time period.
16. The apparatus according to claim 10 or 11, wherein the retransmission determination module comprises:

    A trend determination unit, configured to determine a power change trend within a preset time period according to the transmission power;

    The trend judgment unit is configured to judge that the uplink data needs to be re-sent when the power change trend is an increasing trend and the magnitude of increase is greater than a specified magnitude.
17. The device according to any one of claims 10-16, wherein the information acquisition module comprises:

    A time obtaining unit, configured to obtain the sending time of the uplink data sent by the terminal device when the uplink scheduling information is not obtained within the first time period;

    A time judging unit, configured to obtain the transmission power of the terminal device for sending the uplink data when the transmission time is within a specified time period, where the specified time period is that the load rate of the 5G network based on historical statistics is greater than the load The time period at the threshold.
18. The device according to any one of claims 10-17, wherein the device further comprises:

    The data retransmission module is configured to resend the uplink data when it is determined that the uplink data needs to be retransmitted.
19. A terminal device, characterized in that it comprises:

    One or more processors;

    Memory

    One or more application programs, wherein the one or more application programs are stored in the memory and configured to be executed by the one or more processors, and the one or more application programs are configured to execute The method of any one of claims 1-9.
20. A computer-readable storage medium, wherein the computer-readable storage medium stores program code, and the program code can be called by a processor to execute the method according to any one of claims 1-9 .

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